TOPIC : expected primary-expression before ')' token

Using Arduino Programming Questions
1

Hi, this is my program. I don't know what's the error.

#include <Servo.h>
int servoPin=3;
Servo Servo1;
int angle=0;
int potPin=A0;
int potValue;
int remainder;
const int redPin=9,greenPin=10,bluePin=11;
const int buzz=8;

void setup() {
// put your setup code here, to run once:
Servo1.attach(servoPin);
pinMode(potPin,INPUT);
pinMode(redPin,OUTPUT);
pinMode(greenPin,OUTPUT);
pinMode(bluePin,OUTPUT);
pinMode(buzz,OUTPUT);
Serial.begin(9600);
}

void SetColor(int redValue,int greenValue,int blueValue)
{
analogWrite(redPin,redValue);
analogWrite(greenPin,greenValue);
analogWrite(bluePin,blueValue);
}

void loop() {
// put your main code here, to run repeatedly:
potValue=analogRead(potPin);
Serial.println(potValue);
delay(1000);

if(potValue>=0 && potValue<=200)
{
Servo1.write(30);
SetColor(255,255,0); //yellow
delay(100);
}
else if((potValue>=0 && potValue<=200) && (potValue%5==))
{
Servo1.write(30);
buzz(tone,250);
SetColor(255,255,0); //yellow
delay(100);
}

Advance thanks to anyone who can help!

2

Your code is missing a terminating } on the loop() function

  else if ((potValue >= 0 && potValue <= 200) && (potValue % 5 == ))

What are the == doing there ?

    buzz(tone, 250);

buzz is a variable, not a function

3 
if(potValue>=0 && potValue<=200)
{
}
else if((potValue>=0 && potValue<=200) && (potValue%5==))
  {
  }

The 'if' in your 'else' will never be true. If the first two parts were true you would execute the first 'if' and never get to the 'else'.

Perhaps you want to put another 'if' inside the first 'if':

if(potValue>=0 && potValue<=200)
{

 if(potValue%5==)
  {
  }
}
4

I don't know what's the error.

The compiler told you, but you didn't share it.

5

another error:

Read "How To Use This Forum"

in particular, 7. If you are posting code or error messages, use "code" tags

This is what happens when you do not

if you have a module that is not working, do not say "A GPS" or "the fingerprint sensor". Show us a link to the particular sensor, and a link to the datasheet if available

6

jeez26:
Hi, this is my program. I don't know what's the error.

Clearly "(potValue%5 == )" is wrong. There has to be a value between the '==' and ')'.
Clearly "buzz(tone, 250);" is wrong. Did you mean to use the 'tone' function? Like "tone(buzz, 250);"?
Clearly there should be another "}" at the end of the sketch.
Once those three syntax errors are fixed the sketch will compile without error.

Beyond that it's all a matter of what you want the sketch to do. The sketch only ever sets the servo to 30 degrees, only ever sets the LED to yellow, and only ever turns the buzzer on. That doesn't make much sense and without knowing what you WANT the sketch to do it's hard to say what parts you got right and what parts you got wrong.